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Finding the Fourth Proportional to 689,159.54, 950,900.79 and 402,624.27

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Solution

The fourth proportional to 689,159.54, 950,900.79 and 402,624.27 is: 555,540.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,159.54 : 950,900.79 = 402,624.27 : x
  2. Step 2: Convert to fraction form
    689,159.54/950,900.79 = 402,624.27/x
  3. Step 3: Cross multiply
    689,159.54x = 950,900.79 × 402,624.27
  4. Step 4: Simplify right side
    689,159.54x = 382,855,736,416.17
  5. Step 5: Solve for x
    x = 382,855,736,416.17/689,159.54
  6. Step 6: Final answer
    x = 555,540.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.